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Neptune's Cave

Top of the list of Alghero's unmissable attractions

Definitely worth seeing at least once in everyone’s lifetime, the marine grotto offers a live experience of unique beauty and remarkable charm. 

Located on the north-western ridge of the promontory of Capo Caccia between the cliffs overlooking the sea, Neptune’s Cave truly is one of nature’s most breath-taking sites in the Mediterranean.

Within a series of rooms, tunnels, ravines and passages marked by karst topography, with majestic concretions of stalagmites and stalactites, emerge the crystal clear salty waters of the lake La Marmora, considered one of the largest inner salt lakes in Europe. 

From the entrance hall, the inner tourist pathway winds horizontally for a few hundred meters along a trail carved out on the inside of the cave, taking visitors up to the upper terraces within the different rooms.

It can be accessed by land only via the famous Escala del Cabirol [‘Goat’s Stairs], down the 654 steps as far as the cave’s mouth revealing the magnificent seascape overlooking where Alghero’s deep-blue sea and the sky come together in an embrace on the horizon.

In the tourist season, Neptune’s Cave can also be easily reached by sea, with various boat companies offering enjoyable daily cruises from the tourist port of the Catalan town, or, upon request only, from Cala Dragunara, a small cove located nearby in the bay of Porto Conte.

Address: Strada Provinciale SP55 |  Location: Capo Caccia

OPENING TIMES
Open daily from 10am to 3pm [last entry]

THE ACCESS TO THE CAVE BY LAND AND BY SEA IS ALWAYS DETERMINED BY THE WEATHER AND SEA CONDITIONS, THAT MAY LEAD TO THE CLOSURE OF THE SITE.

GETTING THERE

BY LAND | All year | Through the Escala del Cabirol stairway [654 steps] - Reservation is compulsory. It is necessary to reach the square in front of the ticket office, at Capo Caccia, 40 minutes before the start of the visit in order to respect the check-in time and the time required to walk up the steps.


SHUTTLE SERVICE – FREE PARKING AT CASA GIOIOSA  - Service available until Oct. 31

The shuttle, which connects the parking in CASA GIOIOSA to Capo Caccia Square.

How it works:

• Terminal: CASA GIOIOSA, free parking for cars and motorcycles
• Shuttle fare: €5 round trip (children 0–3 years free)
• Tickets available on board, no reservation required
• First departure: 1 hour before the tour starts
• Frequency: every hour
• Intermediate stops: Tramariglio/Casa Gioiosa (with parking), Cala Dragunara, Belvedere Foradada, Capo Caccia

 
PUBLIC TRANSPORT AND BEACH BUS

• Line 9321 (ARST): extra-urban service from Via Catalogna (Alghero) to Capo Caccia Square, operating all year round (approx. 50 minutes). Timetable available at Bus Route 9321 | Alghero – Capo Caccia BUS STOP Capo Caccia.

• BeachBus (Cattogno Viaggi): seasonal service (May–September), with dedicated schedules and fares available here Beach Bus.

BY SEA | SERVICE OPERATING FROM APRIL TO NOVEMBER | Harbour of Alghero - Linea Grotte Navisarda +39 320 741 2400 - +39 079 950603 | Linea Grotta "Frecce delle Grotte" +39 331 722 9999 - +39 368 353 6824.  The service is provided by private operators and tickets can be purchased at the Port of Alghero.
The boat ticket does not include the entrance fee to Neptune’s Cave.

 

ENTRANCE TICKET 

According to your needs, you can choose between two different types of ticket:

ALGHERO TICKET
The Single Admission Pass to access the Neptune’s Cave and the town main points of interest. Select the ticket that’s best for you:

  • ALGHERO TICKET – valid for 1 adult
  • ALGHERO FAMILY TICKET – valid for 2 adults and 3 young people aged up to 17yrs || October 1 – March 31 (or until Easter if before March 31), valid for 2 adults, 2 seniors (65+), and 3 youths (up to 17 years old)

STANDARD ADMISSION TICKET. Fees available shown below:

  • Full price € 18,00
  • Reduced price € 10,00 | children from 6 to 17 years old; Alghero’s community residents; University students up to 26 years old with a valid student ID or certificate of enrollment for the current academic year; school groups (min. 15 students, per person); Sardinia’s community residents (valid from November 1 to March 31 – or until the week of Easter if earlier)
  • Groups € 12,00 | per person, pre-booked Groups of minimum 25 people
  • Free admission | people with a disability; caretakers of not self-sufficient people; children under 6; teachers accompanying school groups (min 15 students); Licensed tour guides; Free admission from the third minor up to 17 years old

WHERE TO BUY TICKETS

  • ONLINE at www.algheroexperience.it [PURCHASE AN EXPERIENCE] to speed up the waiting time in the Ticket Office;
  • CAVE TICKET OFFICE | Capo Caccia During the opening hours of the Neptune’s Cave

You will be able pay cash or card. 

READ HERE THE IMPORTANT INFORMATION FOR VISITORS 

 

Website: https://grottadinettuno.it/en/
Social channels: Facebook | Instagram
Contacts: grottadinettuno@fondazionealghero.it | +39 345 741 8361

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Last Updated

This page on accessibility was last updated on June 25, 2025.